Propeller-pencil



H. H. TROXEL.

PROPELLER PENCIL.

APPLICATION HLED JUNE 29.1914. RENEWED APR. 1a. 1918.

Patented July 15, 1919.

' STATES PATENT onrrcn.

mn'vnr H. '1ROXEL, on woosrnn, omo, Assumes. or onrrnnrr'ro 03121) c. BILLMAN,

or CLEVELAND, onro.

- rnornntmrnncm Specification of Letters Eatent.

' Patented July 15, 1919.

Application filed June 29, 1914, SeriaI'No. 848,102. Renewed April 13, 1918. Serial No. 228,502.

To all whom it may concern: 7

Be it known that I, HARVEY H. Thom, a citizen of the United States, residing at Wooster, in the county of Wayne and State of Ohio, have invented a new and useful Propeller-Pencil, of which the follow ng is a specification.

My invention relates to improvements in ropeller pencils; its principal ob ects are,

rst, to provide improved means for automatically propelling and repelling the lead or marker; second, to provide means for readily afiixing and removing the lead or marker from the holder; and third, to provide improved means for rigidly securing the point of the lead or marker in position.

It consists primarily, of a pencil body comprising a helix and suitable covering therefor to form the exterior of said body; a tubular member rotatable within said helix and extended beyond the same at both ends; means for removably securing said tubular member within said helix; means for propelling a snugly fitting lead or marker .into and through the apex or point of said pencil body, and means for inserting and for removing said marker from said pencil body at pleasure, as hereinafter set forth and asstated in the appended claims. My invention is illustrated by the accom. panying drawings, in which similar letters of reference indlcate like parts.

Referring thereto, Figure 1 is a longitudinal section of a pencil embodying m invention; Fig. 2 is a view of the tu ular member and connections detached from the pencil body; Fi 3 is a plan view of my pencil showing t e helix through a cut away portion, and the tubular member artly withdrawn; 'Fig. l, a fragmentary view of the pencil body and of the lower portion and apex of the tubular member and the marker-holder, and illustrating in particular the engagement of the marker holder with the threaded portion or helix of the pencil body in moving the markerh'older and marker through the circumferential movements of the tubular member and finger piece. v

In the drawlngs A is the pencil body; B,

the finger piece to which the tubular member design or material suited thereto; it is pref eralbly made by wrapping said material tightly around the helix D from end to end thereof, and is surmounted with a conical cap E, as shown in Fig. 3. Said helix D extends from a point within said conical cap E to a point slightly beyond said neck 3 as shown at d, Fig. 3, and is adapted to receive said tubular member C endwise within the same. The latter is loosely suspended and removably secured within said helix by means of said sleeve :0 and said neck y, the former being made of resilient material and having a slot t therein to permit of sufiicient expansion to enable the rib b to grip over the rib a of the collar Said finger piece B is thus rotatably secured to the pencil body, and said tubular member C suspended to rotate freely within said helix, as shown in Fig. 1. Moreover, said tubular member is made to terminate beyond said helix in said conical cap E so as to rotate upon its inner surface near its apex, thereby securing the same against any lateral movement by pressure in writing. Said tubular member has a longitudinal slot S terminating, at its-upper end, within said sleeve a2, and at its lower end, a short distance from the lower end of said tubular member; and the latter also has a slot f at its lower end, as shown in Fig. 4. The particular objects of said slots and said termini will be' hereafter explained.

A carrier G, adapted to engage the inner end of a lead-stick or marker F, is fitted to slide up and down within said tubular member by means of a projecting stud H when the latter is in operative engagement with said helix through said slot S, by the rotation of said helix about said tubular member, in the usual and well known way.

Said helix terminates at or near the top of the collar 3 and is open at itstop, and

- its upper terminus all projects upwardly, as

shown in Fig. 3. Said projection facilitates the manual separation of the lead carrier G and tubular member-C bodily from the helix D and pencil body A, as follows: Thejslot S extending upwardly within the expansible sleeve :12, as aforesaid, when the latter :is'

the stud H upwardly on said projection-halfar enough to automatically force apart the resilient connection of'said sleeve and collar by the rotation of said tubular; member in one direction, and at the same time, the

afi'ords direct access to said carrier through the slot f for extracting thev lead-stub F (Fig. 4:) therefrom, and also provides better means than heretofore for replenishing the carrier with a new lead-stick by the direct insertion of the same therein whilesaid tubular member is withdrawn from the helix.

The lower terminus of the slot S limits the downward movement of the carrier, and also prevents it from falling out of the tubular member the helix. I It follows that when said carrier is reduring its removal from I plenished with a new lead-stick, as aforesaid, within said tubular member, the separated parts. of the pencil may be reassembled for writing byreplacing said tubular member within said helix. This is accomplished by its rotation in the opposite direction; 'and when the stud H, in the down-' ward movement of said tubular member, reaches the projectin terminus d of. the helix, said stud will e automatically engaged thereby, and will thence follow the coil of said helix downwardlyv until the sleeve :0 is forced into operative engagement with the collar 3 and thereafter, the continued rotation of said tubular member in the same direction, and, the engagement of said stud with said helix, .will

forcibly propel the point of said lead-stick in said carrier through the orifice in the apex of said conical cap, while the lower' end of the tubular member rests rotatably upon the inner surface thereof, as aforesaid, and thereby rigidly holds said lead-stick point, snugly fitting said orifice, in position for writing. p

I am aware it is not new to construct a propeller pencil having a slotted tubular member rotatable within a helix, and a leadstick carrier operable within the former in engagement with the helix, and such I do not broadly claim.

I am also aware that a clamping nozzle, so called, and other forcibly clamping means have been heretofore used to snugly hold the tip of the lead stick after its loose insertion upwardl' into the also disc aim.

My improvement lies in substituting for bod pencil body, and such'I .1

Q -1,s10,2e0

such clamping devices thenovel means set forth for ining access to the lead carrier by its bod y removal from the pencil b0dy,. and for the easy insertion of a new lead stick which snugly fits the apex orifice, by

its introduction 1 into and downwardly 4 through the helix and apex orifice, instead of upwardly, as heretofore, and thereby accomplishes the novel results hereafter stated.

Having thus fully described my invention, what I claim as new is 1. A pencil com rising a tubular body, an annular rib spaced from one end of the body forming a neck portion, a conical cap at the opposite end of the body, a helix within said open at one end and terminating at sai end outwardly of said neck portion, a finger piece havin expansion sleeve removably journale upon said neck and rib, a tubular member secured atone end, to said finger iece and having its other nd extending within and in contact with tihe said cap, and a marker holder arranged "within said tubular member in operative engagement with the said helix.

'2. A pencil comprising a tubular body having a neck at one end and an intermediate projecting rib, a hollow can at the opposite end of saidbody having a side slot therein, ahelix within said body open at one end and terminating at said end outwardly of said neck, a fingerpiece having an expansion sleeve provided with an annular pressed out rib removably journaled upon the said neck with the said ribs. arranged in jourmember in operative engagement with said helix, said tubular member having a slot at its free end adapted for registry with said cap slot, and a marker within said holder within the lower ends of said tubular member and cap inwardly of said slots when operatively positioned.

3. A pencil comprising a. tubular body terminatlng at one end in a neck portion having an annular rib and at the other end in a conical cap, ahelix within said body extending between said conical cap and neck portion, a finger piece having an expansible sleeve removably journaled upon said neck ortion and rib, a tubular member carried y and operable with said finger piece and extending within said helix, and a marker holder longitudinally movable in said tubular member in operative engagement with said helix and circumferentially. movable with respect to the latter, through the like movements of said tubular member and finger piece.

4. A pencil comprisin a tubular body having a neck at one on and a hollow cap at the other, a helix within said tubular body 100 naled relations, a tubular member secured at a one end to said fingerpiece and with its extending between said cap and neck portions, a finger piece having an expansible sleeve removably ournaledupon said neck portion and provi ed with a slotted tubular I member extending through said helix, and

a marker holder longitudinally movable within said tubular member an having a projection extending through the slottedportion ofthe'latterx'in operative engagement with said helix andhircumferentially movable through the like movements of said tubular member and finger piece whereby said marker holder is moved longitudinally.

5. A encilcom rising a tubular body provide with a he 1x extending through its bore, a finger piece removably and rotatably mounted on saidtubular body and provided with a slotted tubular member extending through and insertible in and removable from said helix by said finger piece, and a marker holder horizontally slidable on said tubular member and having a projection excarried by and insertible and removable with said finger iece and provided with a slot extending within said helix, one end of said tubular member'being supported within said conical cap and a marker holder longitudinally movable in said slot of said tubular member in operative engagement with said helix and clrcumferentially movable with respect to the latter through the like circumferential movements of said finger piece.

7. A encil, comprisin a tubular body provid with a helix wit in its bore, a finger piece rotatably mounted on said tubular body and provided with a tubular member extending within said helix and insertible in and removable from the "latter'by said finger iece, and a marker holder slidably arran ed .ongitudinally within said tubular mem er and having a, projection in operative engagement with said helix whereby upon the rotary movement of said finger piece and tubular member said marker holder will be moved circumferentially and spirally alon said helix and longitudinally along sai tubular member and within said tubular 'member.

8. A pencil, comprising a tubular body provided with an internal helix, a finger piece removably and rotatably mounted at the end of said tubular body and provided with a stem portion removably mounted in said helix and tubular body through said finger piece, and a marker holder carried by and longitudinally movable on said stem portion and having a laterally extending projection in circumferential slidable engagement with said helix whereby upon the rotary movement of said finger piece and stem portion said marker holder will be moved spirally of said helix and longitudinally of said stem portion;

In witness whereof, I hereunto set my hand this 11th day of May A. D. 1914.

HARVEY H. TROXEL. In presence of two witnesses: HIRAM SwARTz, JOHN C. MCCLARAN. 

